Where does “suś-” come from?

suś- (Proto-Balto-Slavic) comes from Proto-Indo-European sewk-, from Proto-Indo-European sewh₁- — to press, push.

Ancestry of “suś-”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeansewk-to bend, turn; to suck
2Proto-Indo-Europeansewh₁-to press, push

Words derived from “suś-”

Every word from Proto-Indo-European sewh₁- →Every word from Proto-Indo-European sewk- →